A cytotoxic T cell destroys a virus-infected body cell. This is an example of:
Correct Answer: A. Cell-mediated adaptive immunity
MCQ Collection
Animal Form and Function-I MCQs
Practice Animal Form and Function-I questions with answers and explanations.
An invertebrate lacks antibodies but still survives many infections. This is because invertebrates rely strongly on:
Correct Answer: A. Innate immune defenses
A student measures pulse after exercise and finds it increased. The direct benefit is:
Correct Answer: A. Greater blood delivery to active tissues
Systemic circulation in mammals begins when blood leaves the:
Correct Answer: A. Left ventricle
A student compares immune systems of insects and mammals. Insects do not make antibodies, but they can still use:
Correct Answer: A. Phagocytosis and antimicrobial peptides
A crustacean hemocyte attacks invading microbes in hemolymph. Hemocytes function similarly to:
Correct Answer: A. Immune defense cells
Plasma transports many dissolved substances. One important plasma function is carrying:
Correct Answer: A. Nutrients, hormones, and wastes
A reptile basking in sun raises body temperature. Circulation helps distribute this heat by:
Correct Answer: A. Moving warmed blood through the body
A wound in an insect darkens around invading parasites. This may involve:
Correct Answer: A. Melanization defense response
A student asks why circulation is needed in large animals. The best answer is that diffusion alone is too slow for:
Correct Answer: A. Transport across long internal distances
A student compares blood cells. Leukocytes are mainly involved in:
Correct Answer: A. Defense against pathogens
A student studying blood pressure notes that cardiac output equals:
Correct Answer: A. Heart rate multiplied by stroke volume